Tuesday 18 January, 2022

YAQIN MC-550C Vacuum Tube Valve Integrated Amplifier 300B x4

This product was added to our catalog on Wednesday 13 November, 2013.

Starting at: $860.00

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IMPORTANT:The Economy Shipping may not applicable to some countries due to the maximum weight limit restriction to economy postage parcels (10/20/30 KGs).

All shipping cost above does not apply to South America, Africa, Eastern Europe, Russia, Middle East. We can quote you the price for these countries. If you are unsure about this, please contact us.


1.Powered by four 300B king tubes and push-pull circuit to increase the output power;
2.An analog VU meter on the front panel to monitor the average of the two channel output levels;
3.Choke filtrations in high voltage DC rectifying circuit;
4.High DC voltage delay circuit to protect tubes;
5.Gold plated tube sockets;
6.Utilises the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency;
7.Output transformers manufactured with Japanese silicon steel sheet and oxygen-free enamelled copper and high quality lacquer, which offer a wide dynamic range at full rated output;
8.Employs DC filaments power supply for 300B tubes to minimize humming noise;
9.Beautiful aluminium and steel heavy duty chassis, faceplate and bezels.
Technical Specifications
Tube: 300B × 4 (Output Tubes)
         12AU7 × 4 (Drivers and cathode followers)
           12AX7B × 2 (Voltage amplifiers)
Maximum Output: 18W × 2 (8Ω)
Output Jacks: Two channels with two groups of gold plated jacks
Speaker Output: Impedance: 4Ω and 8Ω
Input Jacks: Four groups of gold plated isolated RCA jacks
Input Sensitivity: 0.25V
Distortion of Harmonic Wave: ≤0.42% (at 12W)
Frequency Response: 5Hz ~ 73KHz (-2dB)
Signal-to-Noise Ratio: >82dB (A Weight)
Supply Voltage: AC 115V 60Hz
Power Consumption: 210W
Net Weight: 21kg (46lb)
Shipping Weight: 25kg (55lb)
Shipping Dimension: 56cm x 48cm x 40cm (22" x 19" x 16")
Dual power supply voltages are available on this unit, 110V AC for North America, 220V AC for Asia and Europe. The unit is preset in the factory to using with 110V AC power supply. For 230V & 240V, it will take 3-7 days for order.
Packages Included:
YAQIN MC-550B unit x1
A Power cable x1
Remote control x1
Hex screw drivers to mount the cover cage and to adjust bias

  • Model: YAQIN-MS550C
  • Shipping Weight: 25kg
  • Manufactured by: YAQIN

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